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Cushion|Lab Grown|IGI

1.70ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG750524534

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG750524534

Diamond specifications and retailer prices

From $466 USD
As of October 28, 2026
Save $3,964 USD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,430 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.7ct lab-grown cushion diamond

This 1.7ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG750524534 or 750524534. Listed at 10 retailers as of October 28, 2026, with prices from $466 to $4,430, a $3,964 spread on the same certified stone. Brilliant Earth lists it at $4,430. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG750524534
Dimensions8.67 × 5.81 × 3.97 mm
L/W Ratio1.49
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.67 mm5.81 mm1.70 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG750524534
Side View
Table 57.0%Crown 34.5°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 68.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $4,430 USD|Low: $333 USD|High: $4,570 USD|Avg: $1,757 USD|-3.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 15$466 USD
Retailer 13$697 USD
Retailer 12$699 USD
Retailer 9$700 USD
Retailer 2$1,115 USD
Retailer 4$1,135 USD
Retailer 11$1,151 USD
Retailer 10$1,315 USD
Retailer 7$1,681 USD
Retailer 8$1,886 USD
Retailer 5$2,057 USD
Retailer 3$2,107 USD
Retailer 6$2,415 USD
Retailer 14$3,120 USD
Brilliant Earth$4,430 USD

22 data points across 15 retailers

10 retailers$466 USD to $4,430 USD

A
Cheapest Retailer
-
$466 USD
Final sale: no returns
A
Retailer 2
-
$697 USD
View
A
Retailer 3
-
$699 USD
View
A
Retailer 4
-
$700 USD
View
A
Retailer 5
-
$1,115 USD
A$1,715 AUD
View
A
Retailer 6
-
$1,151 USD
View
A
Retailer 7
-
$1,315 USD
View
B+
Retailer 8
-
$1,886 USD
£1,485 GBP
View
B
Retailer 9
-
$3,120 USD
View
Most Expensive
B
Brilliant Earth
21406205Y · Oct 29
$4,430 USD
View
9 more retailers have this diamond
Prices start from $466 USDSave up to $3,964 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.70ct Cushion
$466 USD